Hi,
I do not know what part of my code should I post here (I use large size of
data, the loop "for" contains many lines). The situation is difficult to
post here, but I hope these lines would be useful for help:
hcEndDateTmp = userDateStart
if((hcStartTime<="23:59") & (hcEndTime >= "00:00")){
hcEndDateTmp$mday = userDateStart$mday + 1
}
hcEndDate = strftime(hcEndDateTmp, "%Y-%m-%d")
hcStart = ""
hcEnd = as.POSIXlt(paste(hcEndDate, hcEndTime))
for(rowNum in 1:nbJour){
...
hcStart = as.POSIXlt(ecs$startAt[[rowNum]])
ecsInterval2 =
datePower[(datePower$DateTime>=hcStart)&(datePower$DateTime<=hcEnd), ]
...
hcEnd$mday = hcEnd$mday + 1
cat("DEBUG: rowNum=", rowNum, "is.na(hcEnd)=", is.na(hcEnd), "\n")
}
the two last lines are very important. It yields:
DEBUG: rowNum= 1 is.na(hcEnd)= FALSE
DEBUG: rowNum= 2 is.na(hcEnd)= FALSE
DEBUG: rowNum= 3 is.na(hcEnd)= FALSE
DEBUG: rowNum= 4 is.na(hcEnd)= FALSE
DEBUG: rowNum= 5 is.na(hcEnd)= FALSE
DEBUG: rowNum= 6 is.na(hcEnd)= FALSE
DEBUG: rowNum= 7 is.na(hcEnd)= TRUE
Browse[1]> hcEnd
[1] "2009-03-29 06:30:00"
Browse[1]> class(hcEnd)
[1] "POSIXlt" "POSIXt"
So, At the end of 7th iteration, hcEnd becomes NA (I guess because of
hcEnd$mday = hcEnd$mday + 1 ?!?). But It remains strange because the class
of hcEnd is here "POSIXlt" "POSIXt" (it should be "logical".!! Am I
wrong???)
Here is the version of R:
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 13.2
year 2011
month 09
day 30
svn rev 57111
language R
version.string R version 2.13.2 (2011-09-30)
thanks for your help
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